onsemi has announced an expanded collaboration with Schaeffler for the supply of its EliteSiC silicon carbide MOSFETs to power the next generation of traction inverters for plug-in hybrid electric vehicles (PHEVs). Under this partnership, Schaeffler will integrate onsemi’s latest generation of EliteSiC devices into the inverter platform selected by a major global automaker for its forthcoming PHEV architecture.

The EliteSiC MOSFETs are engineered to deliver notably lower conduction losses and superior short-circuit ruggedness compared to traditional solutions. These properties are critical in traction inverter applications, where both high efficiency and robust fault tolerance directly impact vehicle range, reliability, and overall system cost. The low on-state resistance of the EliteSiC devices supports higher peak power delivery, enabling automakers to meet aggressive performance targets while improving energy conversion efficiency.

The adoption of advanced silicon carbide switching devices in place of conventional IGBT technology marks a significant shift in PHEV system design. By leveraging SiC MOSFETs, Schaeffler’s inverter achieves improved power density and a more compact, thermally efficient packaging, facilitating flexible vehicle integration and enabling longer all-electric range within the same battery constraints. The enhanced switching performance also contributes to reduced thermal management demands, ultimately supporting higher reliability and lower maintenance requirements for the OEM and end customer.

Schaeffler’s traction inverter, now based on onsemi’s SiC technology, is positioned to address the increasing demand for energy-efficient and reliable electrified drivetrains in mainstream and cost-sensitive vehicle segments. This collaboration aligns with the broader industry transition towards high-performance hybrid and electric vehicle architectures, reinforcing onsemi’s position as a tier-one supplier of silicon carbide solutions to major automotive equipment manufacturers.

onsemi’s designation as the exclusive silicon carbide supplier for this program further consolidates its strategic relationship with Schaeffler, building on their established multi-year engagement in e-mobility systems development. The partnership demonstrates a commitment to advancing the power electronics ecosystem and delivering traction inverter solutions engineered for the demands of next-generation electrified powertrains.

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